The Ohaus Europe GmbH rectangular cast iron weight 5kg M1 is adjusted to meet OIML M1 tolerances. Weights up to 500g come with a polycarbonate case, while larger weights have a wood hinged case. Individual weights up to 500mg include a polypropylene case. It is sourced from FR. Weights are made from aluminum and brass
Weights are made from nickeled brass or stainless steel